Roll supporting and rotating attachment for a buffing machine



Oct. 4, 1955 E. K. BROWN 2,719,391

ROLL SUPPORTING AND ROTATING ATTACHMENT FOR A BUFFING MACHINE Filed Nov. 20, 1955 3 Sheets-Sheet l W w wm A NN NH M QN INVENTOR.

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United States Patent O ROLL SUPPORTING AND ROTATING ATTACH- MENT FOR A BUFFING MACHINE Edmund K. Brown, Torrington, Conn., assignor to The Torrington Company, Torrington, Conn., a corporation of Maine Application November 20, 1953, Serial No. 393,411

3 Claims. (Cl. 51-236) The invention relates to new and useful improvements in an attachment for bufng machines for buiing cots on rolls of spinning machines and the like.

An object of the invention is to provide a roll supporting and rotating mechanism which can be attached as a unit to a bufng machine and the rolls positioned so that the cot thereon can be contacted with by the butling wheel.

A further object of the invention is to provide an attachment of the above type wherein the roll is rotated by direct contact with the roller which is disposed above and forward of the roll and held in engagement with the cot by spring means.

A still further object of the invention is to provide an attachment of the above construction wherein the roller may be lifted from the roll by manually operated means to facilitate the placing and removal of the roll.

These and other objects will in part be obvious and will in part be hereinafter more fully disclosed.

ln the drawings:

Figure l is a view partly in vertical section and partly in end elevation of an attachment to a buing machine for bufling the cots on the rolls of spinning machines.

Figure 2 is a front view in elevation of the attachment shown in Figure l.

Figure 3 is a top elevation of the attachment shown in Figure l with a slightly different location of the work supporting brackets from that shown in Figure 2.

The buiing machine to which the attachment is applied may be of any desired construction. In Figure l of the drawings a portion of a buthng wheel 1 is shown and also a portion of the shield 2 therefor. This bufling wheel rotates in the direction of the arrow shown in Figure l. Extending across the front of the machine is a bar 3. The bar may be of any cross sectional shape. As herein illustrated it is hexagonal in cross section.

Attached to this buftng machine bar are bracket arms 4, 4. Each bracket arm includes a jaw 5 adapted to engage the front of the bar 3 and a jaw 6 adapted to engage the rear portion of the bar 3. A clamping bolt 7 draws the jaws into lirm contact with the bar 3. These brackets 4, 4 extend outwardly away from the buting machine and mounted on the brackets is a bed 8 which extends from one end to the other of the attachment. The bed is secured to the bracket arms by suitable bolts 9. Other forms of bed supporting means may be employed to suit the buting machine to which the attach ment is connected.

Rigidly mounted at the ends of the bed are upwardly extending standards 10. Pivotally mounted on each standard is a bell-crank lever 54 having a depending arm 11. The lower ends of these arms are joined by a rod 12 and by bolts 13 passing through the arm and threaded into the rod 12. Extending from the pivotal support of the bell-crank levers on each standard is an arm 14. This projecting arm 14 is integral with the arm 11 and movable therewith. The free ends of the arms 14 are connected by a rod 15. Bolts 16, 16 are 'ice threaded through the arms 14 and into the ends of the rod 15. Mounted in the upper end of each standard 10 is a pivot stud 16a and the arm 11 is journaled on this stud for oscillating movement.

Also mounted on the pivot stud 16a is a belt wheel 17. Also mounted on this pivot stud 16a is a second driving pulley 18. The two pulleys are secured together for rotation. The pulley 13 is driven by a belt 19 from a shaft 20 which is a part of the buing machine or may be separately driven by a motor.

Mounted in the free ends of the arms 14 is a roller 21. This roller extends substantially from one end of the attachment to the other and is of uniform diameter. The roller supporting shaft 22 at one end of the roller carries a gear 23 which meshes with a gear 23a. The gear 231L is on a stub shaft 24 carrying a belt wheel 25'. This stub shaft is mounted at the end of one of the arms 14. A belt 26 runs over the pulleys 17 and 25 and thus the roller 21 is rotated by this belt 26, pulley 25 and gear arrangement just described.

Integral with the bed 8 is an upstanding plate 28. The bed is slotted at 30 to receive the bolts 9 which extend through the bed and are threaded into the brackets 4, 4. Mounted on this plate are work supporting brackets 32 (see Fig. 3). Each work supporting bracket has a shank portion 33 which is secured to the upstanding plate 28 by means of bolts 34. These bolts pass through slots 35 which permit the supporting brackets for the work to be shifted toward and from each other to suit different types of top rolls. As shown in the drawings, the work supporting brackets are spaced so as to engage the mandrel between the top rolls. The mandrel is indicated at 36 and cots 37. These work supporting brackets can be changed from right to left and engage end gudgeons of top rolls.

Each bracket 32 has a supporting face 38 and also a supporting face 39. These supporting faces are substantially at right angles to each other and each supporting face has a hardened inset plate 38a on which the mandrel of the top roll rests. It is noted that the bed is secured to the brackets 4 by the bolts 9 which pass through slots 3) so that the bed may be shifted toward and from the butiing roll to properly position the cot so that it will be brought into contact with the buihng roll. Mounted on the rod 12 carried at the lower ends of the depending arms 11 is a sleeve 4l) which is free to oscillate about the center of a rod 12. Attached to this sleeve and extending forwardly therefrom is a handle member 41. Threaded into the sleeve 40 is a second sleeve 42 and telescopingly mounted in this second sleeve 42 is a rod 43. There is a washer 44 carried by the rod 43 which limits the outward movement of the rod. A spring 45 surrounds the rod and abuts at one end against a head 46 carried by the rod 43. It abuts at the other end against the sleeve 42. This sleeve, as noted, is threaded into the sleeve 40 and. may be turned in or out thereof by a socket head 47. Secured to the bed 8 by suitable bolts 49 is a bracket 48. This bracket 48 carries spaced members, one of which is shown at 50 (Figure 1). A link 51 is attached by a pivot pin 52 to these spaced members 50, 50. This link 51 is attached to the head 46 of the rod 43 by a pivot pin S3. When the link is in the position shown in Figure l, the center of the pivot pin 53 is substantially in a line passing through the center of the pivot pin 52 and the center of the rod 12. At this time the driving roller 21 is in contact with the cot or cots for rotating the same. A slight further movement of the handle 41 will bring the link and sleeve into dead center alignment. This will move the rod into the sleeve and the spring 45 will yieldingly hold the roller 21 in contact with the cot 37.

After the bufiing operation is finished then the operator by depressing the handle 41 will move the rod 43 away from said center line and this will move the rod 12 in a clockwise direction and result in lifting the driving roll to a raised position. This facilitates the removal of the top roll from the attachment and the replacing of another top roll therein for buing.

Referring to Figure l, it is noted that the driving roller 21 is not only above the cot but the axis of the driving roller is slightly rearward of the center of the trunnion. This Will press the mandrel against the supporting faces 38 and 39, and will hold the same in the fixed center of rotation of the cots. Each bracket contacts the supporting roll trunnions in the same manner as on the spinning frame so that the cots are bufed concentrically.

The term cot as used above is intended to describe the covering of a top roll and may be either a single cot or two cots mounted on a mandrel such as used in a top roll construction. As usual in a bufling machine, the buing wheel is mounted so that it may be moved into bufling contact with the cot and also so that it may be moved endwise of the cot ,if the buing wheel has a width less than the length of the cot.

It is obvious that many changes in the details of construction may be made without departing from the spirit of the invention as set forth in the appended claims.

I claim:

1. A top roll supporting and rotating attachment for buing machines for bung cots thereon comprising bracket arms adapted to be attached to a butng machine, a bed carried by said bracket arms, standards at the ends of the bed, bell-crank levers having arms pivotally supported at the upper ends of said standards and depending therefrom, arms formed integral with the bell crank levers, a rod connecting the ends of said last named arms, a driven pulley mounted on one of the standards with its axis in alignment with the pivotal supports for said arms, a roller mounted at the ends of said arms for rotating the rolls with the cots thereon, means for rotating said roller from the driven pulley, supporting brackets carried by said bed, each bracket having an upwardly facing V-shaped recess adapted to receive the supporting mandrel for the rolls, and means connected to said depending arms for holding said driving roller in engagement with said cots.

2. A top roll supporting and rotating attachment for buing machines for bufiing cots thereon comprising bracket arms adapted to be attached to the buflng machine, a bed carried by said bracket arms, standards at the ends of the bed, bellecrank levers having arms pivotally supported at the upper ends of said standards and depending therefrom, arms formed integral with the bell-crank levers, a rod connecting the ends of said last named arms, a driven pulley mounted onl one of the standards with its axis in alignment with the pivotal supports for said arms, a roller mounted at the ends of said last named arms for rotating the rolls with the cots thereon, means for rotating said roller from the driven pulley, supporting brackets carried by said bed, each bracket having an upwardly facing recess adapted to receive the supporting mandrel for the rolls, the axis of the driving roller being disposed above said recesses for holding the roll in a fixed rotating position during buing, toggle links between said supporting brackets and the rod connecting the ends of the depending arms, and manually operated means for shifting the toggle links for moving the roller into and out of engagement with the cots.

3. A top roll supporting and rotating attachment for buiing machines for buing cots thereon comprising bracket arms adapted to be attached to the buing machine, a bed carried by said bracket arms, standards at the ends of the bed, bell-crank levers having arms pivotally supported at the upper ends of said standards and depending therefrom, arms formed integral with the bell-crank levers, a rod connecting the ends of said last named arms, a driven pulley mounted on one of the standards with its axis in alignment with the pivotal supports for said arms, a roller mounted at the ends of said last named arms for rotating the rolls with the cots thereon, means for rotating said roller from the driven pulley, supporting brackets carried by said bed, each bracket having an upwardly facing recess adapted to receive the supporting trunnions of the roll, the axis of said cot driving roller being disposed above said recesses for holding the cot in a iixed rotating position during buling, toggle links between said supporting brackets and the rod connecting the ends of the depending arms, and manually operated means for shifting the toggle links for moving the roller into and out of engagement with said cot, said links being substantially in alignment when the roller engages the cot, one of said links including telescoping sleeves and a compression spring operating through said sleeve for yieldingly holding said roller in contact with the cot.

References Cited in the le of this patent UNITED STATES PATENTS 1,880,875 Deutsch Oct. 4, 1932 FOREIGN PATENTS Y 471,133 Great Britain Aug. 30, 1937 510,558 Great Britain n- Aug. 3, 1939 

